G21C 7/20
Disposition of shock-absorbing devices
Official title: Disposition of shock-absorbing devices (shock-absorbers in general F16F ){; Braking arrangements}
G21C7/20 (Disposition of shock-absorbing devices) appears on 44 US grants and 26 published applications in this corpus.
Search patents in G21C- Granted patents
- 44
- Published applications
- 26
- Assignees
- 30
- Inventors
- 79
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 0 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 3 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 6 |
| 2017 | 2 | 0 |
| 2018 | 1 | 2 |
| 2019 | 3 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control rod damping system7 Jul 2026US 12,676,246 B2NuScale Power, LLC
- Control rod damping system18 Apr 2023US 11,631,503 B2NuScale Power, LLC
- Nuclear reactor fuel assembly18 Oct 2022US 11,476,009 B2Joint Stock Company “Experimental and Design Organization Gidropress” Awarded the Order of the Red
- Method of installing an external dashpot tube around a control rod guide tube in a nuclear fuel assembly29 Mar 2022US 11,289,211 B2Westinghouse Electric Corp.
- Control rod damping system1 Jun 2021US 11,024,433 B2NuScale Power, LLC
- Fuel assembly for a nuclear power plant, method for activating a material to be activated and gripper27 Feb 2025US 2025/0069763 A1
- Control rod damping system25 May 2023US 2023/0162875 A1NuScale Power, LLC
- Control drum assembly and associated nuclear reactors and methods24 Feb 2022US 2022/0059246 A1Battelle Energy Alliance, LLC
- Control rod damping system23 Dec 2021US 2021/0398695 A1NuScale Power, LLC
- Nuclear Reactor Fuel Assembly25 Nov 2021US 2021/0366623 A1Joint Stock Company "Experimental and Design Organization "Gidropress" Awarded the Order of
Most cited
By later US patents
- Dashpot construction for a nuclear reactor rod guide thimble42US 5,068,083 AWestinghouse Electric Corp. · 1991
- Tube-in-tube threaded dashpot end plug34US 7,668,284 B2Westinghouse Electric Corp. · 2010
- Fuel assembly and thimble screw of the same31US 7,257,185 B1Mitsubishi Heavy Industries, Ltd. · 2007
- Fuel assemblies for nuclear reactors14US 4,655,990 ACommissariat A L' Energie Atomique · 1987
- Releasable extension shaft coupling11US 4,073,684 ACombustion Engineering, Inc. · 1978